1.a) Find 128 % of 400. la) b) What percent of 172 is 80? Round to the nearest tenth of a percent. 1b) c) 20 is 63% of what number? This time round to the nearest hundredth. 1 c) 2. A person making $2400 per month has her salary reduced by 5% due to poor company sales. One year later, after a dramatic increase in sales, she is given an 18% increase over her reduced salary. a) How much is her salary reduced per month? 2a) b) What is her reduced salary per month? 2b) c) What is her raise per month? 2c)